 *{
	 	margin: 0;
	 	padding: 0;
	 }
	 body{
		 background-color: #a6faff;
		 /* background-; */
	 }
	 .w{
	 	width: 1200px;
	 	margin: auto;
	 }
	 .header{
	 	height: 42px;
	    margin: 30px auto;
		opacity:0.7;
	 }
	 .logo{
	 	float: left;
	 	width: 150px;
	 	height: 40px;
	 }
	 .nav{
	 	float: right;
	 	margin-left:60px ;
	 }
	 .nav ul li{
	 	float: left;
	 	list-style-type:none;
	 	margin: 0 15px;
	 }
	 .nav ul li a{
	 	display: block;
	 	height: 42px;
	 	padding: 0 10px;
	 	line-height: 42px;
	 	font-size: 18px;
	 	color: black;
	 	text-decoration: none;
	 	}
	 	.a{
	 		text-decoration:none ;
	 	}
	 	.banner{
	 		height: 400px;
	 		/* background-color: blue; */
	 	}
	 	.banner .w{
	 		height: 400px;
	 	    background-image: url(../img/333.jpeg); 
			background-size: 100% 100%;
	 	}
	 	.left{
	 		width: 150px;
	 		height: 400px;
	 		background:rgb(0,0,0,0.6);
	 	}
	 	.left ul li a{
	 		font-size: 14px;
	 		color: white;
	 		text-decoration: none;
	 	}
	 	.left ul li {
	 		list-style-type:none;
	 		padding: 0 20px;
	 		height:45px ;
	 		line-height: 45px;
	 	 }
	 	 .sp{
	 		 height: 60px;
	 		 background-color: aliceblue;
	 		 margin-top: 15px;
	 		 line-height: 60px;
	 	 }
	 	 .sp h3{
	 		 float: left;
	 		 margin-left: 30px;
	 	 }
	 	 .sp ul{
	 	 		 float: left;
	 	 }
	 	 .sp ul li{
	 		  margin-left: 30px;
	 	 		 float: left;
	 			 list-style-type:none;
	 	 }
	 	 .b1{
	 		margin-top: 20px;
	 		 height: 1000px;
	 	 }
	 	 .b1 ul li{
	 		 width: 230px;
	 		 height: 240px;
	 		 float: left;
	 		 background-color: #00ffff;
	 		 list-style-type:none;
	 		 margin-left: 10px;
	 		 margin-bottom: 10px; 
	 		 background-repeat: no-repeat;
	 		 background-size: contain;
	 		 background-position: center;
	 	 }
		 .b1 ul li img  {
		        width: 230px;
		        height: 240px;
		         display: block;
		         margin: auto;
		     }
	 	 .foot{
	 		 margin-bottom: 60px;
	 	 	height: 150px;
	 text-align: center;
	 	 }








